Merge pull request #34 from dipak-01/contribution

Contribution

CONTRIBUTORS.md

@@ -22,3 +22,4 @@
 | Moh Faizan | <a href="https://github.com/faizanusmani06"> Moh Faizan</a>|
 | Praneesh Sharma | <a href="https://github.com/Praneesh-Sharma"> Praneesh Sharma </a>|
 | Naman Bagdiya | <a href="https://github.com/NamanOG"> NamanOG </a>|
+| Diapk Kurkute| <a href="https://github.com/dipak-01"> dipak-01 </a>|

c++/Factorial.cpp

@@ -0,0 +1,44 @@
+#include <iostream>
+using namespace std;
+
+class Factorial
+{
+private:
+    int num;
+    unsigned long long factorial = 1;
+
+public:
+    void calculateFactorial();
+    void show();
+};
+
+void Factorial::calculateFactorial()
+{
+    cout << "Enter a number:" << endl;
+    cin >> num;
+
+    if (num == 0 || num == 1)
+    {
+        factorial = 1;
+    }
+    else
+    {
+        while (num > 1)
+        {
+            factorial = factorial * num;
+            num--;
+        }
+    }
+}
+
+void Factorial::show()
+{
+    cout << "Factorial: " << factorial << endl;
+}
+
+int main()
+{
+    Factorial factorial;
+    factorial.calculateFactorial();
+    factorial.show();
+}